Hi @Nora Blue, let's jump right into this!
You mentioned that you can't open the Dropbox app on your Windows device. Can you let me know why that is?
Do you get any specific errors? If so, feel free to attach the error here.
It's also been mentioned that if you click anything it opens Dropbox online. What do you mean by that? Can you walk me through the steps that you follow on your end?
Keep me posted!